113233121 has 2 divisors, whose sum is σ = 113233122. Its totient is φ = 113233120.

The previous prime is 113233097. The next prime is 113233123. The reversal of 113233121 is 121332311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73290721 + 39942400 = 8561^2 + 6320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113233121 is a prime.

It is a Sophie Germain prime.

Together with 113233123, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113233121.

It is not a weakly prime, because it can be changed into another prime (113233123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56616560 + 56616561.

It is an arithmetic number, because the mean of its divisors is an integer number (56616561).

Almost surely, 2^113233121 is an apocalyptic number.

It is an amenable number.

113233121 is a deficient number, since it is larger than the sum of its proper divisors (1).

113233121 is an equidigital number, since it uses as much as digits as its factorization.

113233121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 17.

The square root of 113233121 is about 10641.1052527451. The cubic root of 113233121 is about 483.7910457107.

Adding to 113233121 its reverse (121332311), we get a palindrome (234565432).

The spelling of 113233121 in words is "one hundred thirteen million, two hundred thirty-three thousand, one hundred twenty-one".